O primeiro parágrafo do texto apresenta três verbos que têm como sujeito "O ator". Levando-se em consideração o contexto, identifique no que se refere à predicação: a) o verbo de ligação: b) o verbo transitivo direto: c) o verbo transitivo indireto:

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. the ice dissolves oxygen from the air, forming a denser crystalline matrix. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.